Bicycle Inner Tube Lock

Used bicycle inner tubes can be used to secure loads on bicycles. With this lock, you can quickly secure the tightened tube. This model can accommodate bicycle inner tubes with a width of 20 mm, such as 20-622, 27 x ¾ or 700 x 20C. Printing PLA or PETG 20% grid infill no supports. I printed a version in PLA and tested it with such a heavy load that the bicycle inner tube stretched significantly, but the lock did not open.